23420322 has 24 divisors (see below), whose sum is σ = 53729676. Its totient is φ = 7347456.

The previous prime is 23420281. The next prime is 23420323. The reversal of 23420322 is 22302432.

23420322 is a `hidden beast` number, since 2 + 342 + 0 + 322 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18584721 + 4835601 = 4311^2 + 2199^2 .

It is a super-2 number, since 2×23420322² = 1097022965167368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23420295 and 23420304.

It is not an unprimeable number, because it can be changed into a prime (23420323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37963 + ... + 38574.

Almost surely, 2^23420322 is an apocalyptic number.

23420322 is an abundant number, since it is smaller than the sum of its proper divisors (30309354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23420322 is a wasteful number, since it uses less digits than its factorization.

23420322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76562 (or 76559 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23420322 is about 4839.4547213503. The cubic root of 23420322 is about 286.1086274569.

Adding to 23420322 its reverse (22302432), we get a palindrome (45722754).

The spelling of 23420322 in words is "twenty-three million, four hundred twenty thousand, three hundred twenty-two".